What is the cheapest airline that flies from United States to Northern Ireland?

British Airways, Aer Lingus, and Delta are the most popular carriers operating from United States to Northern Ireland

How long is the flight from United States to Northern Ireland?

Flight times vary depending on what airport in United States you fly out of and what airport in Northern Ireland you fly into. For example, flying from New York to Belfast Intl Airport takes 10h 35m on average. On the other hand, flying from Boston to Belfast Intl Airport takes 11h 40m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Northern Ireland?

British Airways, Delta and American Airlines are the top three most popular airlines that fly to Northern Ireland from United States according to our data. British Airways is the first choice among our users, with 91% of people opting to fly with this airline when traveling to Northern Ireland. Keep in mind that there are 3 different airlines that fly to Northern Ireland on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from United States to Northern Ireland?

Prices for flights from United States to Northern Ireland were last updated today.

How many operators does momondo search for flights from United States to Northern Ireland?

As of September 2026, there are 2 operators available to choose from for flights from United States to Northern Ireland.

How old do you have to be to fly from United States to Northern Ireland?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$207 Cheap Flights from the United States to Northern Ireland in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to Northern Ireland

Round-trip

One-way

Last minute

Recent round-trip flight deals from the United States to Northern Ireland

Enter your travel dates to find the best prices.

7:05 pm - 12:20 pmBOS Boston Logan Intl-BFS Belfast Intl

12h 15m1 stop London Heathrow

8:50 am - 9:05 pmBFS Belfast Intl-BOS Boston Logan Intl

41h 15m2 stops London Stansted Barcelona-El Prat

$638Multiple Airlines

Sun, Oct 4 - Tue, Oct 20

11:00 pm - 10:40 amEWR Newark-BFS Belfast Intl

30h 40m1 stop Paris Orly

10:05 pm - 9:00 pmBFS Belfast Intl-EWR Newark

50h 55m2 stops Manchester Paris Beauvais-Tille

$667Multiple Airlines

Mon, Oct 12 - Mon, Oct 26

11:00 pm - 6:25 pmEWR Newark-BFS Belfast Intl

14h 25m1 stop Paris Orly

10:05 pm - 9:00 pmBFS Belfast Intl-EWR Newark

26h 55m2 stops Manchester Paris Beauvais-Tille

$669Multiple Airlines

Sun, Oct 11 - Mon, Oct 26

11:00 pm - 6:25 pmEWR Newark-BFS Belfast Intl

14h 25m1 stop Paris Orly

7:35 am - 9:00 pmBFS Belfast Intl-EWR Newark

42h 25m2 stops Manchester Paris Beauvais-Tille

$673Multiple Airlines

Sun, Oct 4 - Tue, Oct 20

9:25 pm - 2:05 pmBOS Boston Logan Intl-BHD Belfast City

11h 40m1 stop London Heathrow

6:35 am - 2:20 pmBHD Belfast City-BOS Boston Logan Intl

12h 45m1 stop London Heathrow

$974British Airways

Thu, Feb 11 - Mon, Feb 15

7:30 pm - 10:30 amBOS Boston Logan Intl-BHD Belfast City

10h 00m1 stop London Heathrow

9:40 am - 4:55 pmBHD Belfast City-BOS Boston Logan Intl

12h 15m1 stop London Heathrow

$978British Airways

Sun, Oct 4 - Tue, Oct 20

9:35 am - 8:40 amJFK New York John F Kennedy Intl-BHD Belfast City

18h 05m1 stop London Heathrow

7:40 pm - 2:05 pmBHD Belfast City-JFK New York John F Kennedy Intl

22h 25m1 stop London Heathrow

$988British Airways

Sun, Oct 11 - Mon, Oct 26

7:10 pm - 10:30 amJFK New York John F Kennedy Intl-BHD Belfast City

10h 20m1 stop London Heathrow

4:25 pm - 10:25 pmBHD Belfast City-JFK New York John F Kennedy Intl

11h 00m1 stop London Heathrow

$993American Airlines

Sun, Oct 4 - Tue, Oct 20

6:25 pm - 10:55 amJFK New York John F Kennedy Intl-BHD Belfast City

11h 30m1 stop London Heathrow

11:05 am - 6:45 pmBHD Belfast City-JFK New York John F Kennedy Intl

12h 40m1 stop London Heathrow

$1,293American Airlines

Thu, Dec 17 - Thu, Dec 31

6:25 pm - 10:55 amJFK New York John F Kennedy Intl-BHD Belfast City

11h 30m1 stop London Heathrow

11:05 am - 6:45 pmBHD Belfast City-JFK New York John F Kennedy Intl

12h 40m1 stop London Heathrow

$1,294American Airlines

Thu, Dec 17 - Thu, Dec 31

Recent last minute flight deals from the United States to Northern Ireland

Enter your travel dates to find the best prices.

8:30 pm - 12:15 pmMCO Orlando-BFS Belfast Intl

34h 45m1 stop London Gatwick

8:15 pm - 6:25 pmBFS Belfast Intl-MCO Orlando

27h 10m1 stop London Stansted

$820Multiple Airlines

Sun, Sep 6 - Tue, Sep 8

8:30 pm - 6:45 pmMCO Orlando-BFS Belfast Intl

17h 15m1 stop London Gatwick

10:30 pm - 10:40 amBFS Belfast Intl-MCO Orlando

41h 10m3 stops London Luton Dublin Toronto Pearson Intl

$984Multiple Airlines

Sun, Sep 6 - Tue, Sep 8

11:00 pm - 9:30 pmBOS Boston Logan Intl-BFS Belfast Intl

17h 30m2 stops Reykjavik Keflavik Intl Edinburgh Turnhouse

8:15 pm - 8:20 pmBFS Belfast Intl-BOS Boston Logan Intl

29h 05m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

$1,072Multiple Airlines

Sat, Sep 5 - Tue, Sep 15

6:00 am - 2:35 pmMCO Orlando-BFS Belfast Intl

27h 35m3 stops Montreal Pierre Elliott Trudeau Intl Zurich London Gatwick

10:30 pm - 10:40 amBFS Belfast Intl-MCO Orlando

41h 10m3 stops London Luton Dublin Toronto Pearson Intl

$1,101Multiple Airlines

Sun, Sep 6 - Tue, Sep 8

7:59 pm - 6:50 pmMCO Orlando-BFS Belfast Intl

17h 51m2 stops Dublin Glasgow Intl

10:30 pm - 10:40 amBFS Belfast Intl-MCO Orlando

41h 10m3 stops London Luton Dublin Toronto Pearson Intl

$1,157Multiple Airlines

Sun, Sep 6 - Tue, Sep 8

8:30 pm - 9:55 pmMCO Orlando-BFS Belfast Intl

20h 25m1 stop London Gatwick

6:15 am - 11:49 pmBFS Belfast Intl-MCO Orlando

22h 34m2 stops London Gatwick Toronto Pearson Intl

$1,165Multiple Airlines

Sun, Sep 6 - Tue, Sep 8

11:00 pm - 9:30 pmBOS Boston Logan Intl-BFS Belfast Intl

17h 30m2 stops Reykjavik Keflavik Intl Edinburgh Turnhouse

5:10 pm - 2:45 pmBFS Belfast Intl-BOS Boston Logan Intl

26h 35m2 stops Malaga Lisbon Humberto Delgado

$1,172Multiple Airlines

Sat, Sep 5 - Tue, Sep 15

6:25 pm - 4:55 pmJFK New York John F Kennedy Intl-BHD Belfast City

17h 30m1 stop Amsterdam Schiphol

5:30 pm - 5:05 pmBHD Belfast City-JFK New York John F Kennedy Intl

28h 35m1 stop Amsterdam Schiphol

$1,232Delta

Sun, Sep 6 - Sat, Sep 12

10:40 pm - 5:40 pmJFK New York John F Kennedy Intl-BHD Belfast City

14h 00m1 stop London Heathrow

7:05 pm - 9:05 pmBHD Belfast City-JFK New York John F Kennedy Intl

31h 00m1 stop London Heathrow

$1,305British Airways

Sun, Sep 6 - Sat, Sep 12

9:35 am - 8:40 amJFK New York John F Kennedy Intl-BHD Belfast City

18h 05m1 stop London Heathrow

7:05 pm - 9:05 pmBHD Belfast City-JFK New York John F Kennedy Intl

31h 00m1 stop London Heathrow

$1,334British Airways

Sun, Sep 6 - Sat, Sep 12

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Virgin Atlantic flights from United States to Northern Ireland

Our best Virgin Atlantic deals on United States to Northern Ireland flight tickets

Virgin Atlantic

Oct 18

JFK4:40 pmNew York John F Kennedy Intl

11h 40m

1 stop

BHD9:20 amBelfast City

Nov 2

BHD9:40 amBelfast City

30h 40m

1 stop

JFK11:20 amNew York John F Kennedy Intl

$958

Virgin Atlantic

Oct 11

JFK4:40 pmNew York John F Kennedy Intl

19h 15m

1 stop

BHD4:55 pmBelfast City

Oct 26

BHD5:15 pmBelfast City

31h 05m

1 stop

JFK8:20 pmNew York John F Kennedy Intl

$960

Virgin Atlantic

Oct 12

JFK4:40 pmNew York John F Kennedy Intl

11h 40m

1 stop

BHD9:20 amBelfast City

Oct 26

BHD5:15 pmBelfast City

31h 05m

1 stop

JFK8:20 pmNew York John F Kennedy Intl

$1,001

Aer Lingus flights from United States to Northern Ireland

Our best Aer Lingus deals on United States to Northern Ireland flight tickets

Aer Lingus

Oct 11

JFK11:55 pmNew York John F Kennedy Intl

16h 10m

2 stops

BHD9:05 pmBelfast City

Oct 26

BHD6:50 amBelfast City

17h 39m

2 stops

JFK8:29 pmNew York John F Kennedy Intl

$976

Aer Lingus

Sep 21

JFK4:55 pmNew York John F Kennedy Intl

14h 00m

2 stops

BHD11:55 amBelfast City

Sep 28

BHD5:55 pmBelfast City

24h 45m

2 stops

JFK1:40 pmNew York John F Kennedy Intl

$1,038

Aer Lingus

Feb 12

EWR5:40 pmNewark

14h 30m

2 stops

BHD1:10 pmBelfast City

Feb 15

BHD6:20 pmBelfast City

26h 50m

2 stops

EWR4:10 pmNewark

$1,098

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 10/4

7:05 pm-12:20 pm

1 stop12h 15m

Belfast Intl

Tue 10/20

8:50 am-9:05 pm

2 stops41h 15m

$638

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Mon 10/12

11:00 pm-10:40 am

1 stop30h 40m

Belfast Intl

Mon 10/26

10:05 pm-9:00 pm

2 stops50h 55m

$667

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Sun 10/11

11:00 pm-6:25 pm

1 stop14h 25m

Belfast Intl

Mon 10/26

10:05 pm-9:00 pm

2 stops26h 55m

$669

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Sun 10/4

11:00 pm-6:25 pm

1 stop14h 25m

Belfast Intl

Tue 10/20

7:35 am-9:00 pm

2 stops42h 25m

$673

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Thu 2/11

9:25 pm-2:05 pm

1 stop11h 40m

Belfast City

Mon 2/15

6:35 am-2:20 pm

1 stop12h 45m

$974

BostonBelfast

BOS Boston Logan Intl - BHD Belfast City

BOSBHD

Boston Logan Intl

Sun 10/4

7:30 pm-10:30 am

1 stop10h 00m

Belfast City

Tue 10/20

9:40 am-4:55 pm

1 stop12h 15m

$978

New YorkBelfast

JFK New York John F Kennedy Intl - BHD Belfast City

JFKBHD

New York John F Kennedy Intl

Sun 10/11

9:35 am-8:40 am

1 stop18h 05m

Belfast City

Mon 10/26

7:40 pm-2:05 pm

1 stop22h 25m

$988

Quickest round-trip

New YorkBelfast

JFK New York John F Kennedy Intl - BHD Belfast City

JFKBHD

New York John F Kennedy Intl

Sun 10/4

7:10 pm-10:30 am

1 stop10h 20m

Belfast City

Tue 10/20

4:25 pm-10:25 pm

1 stop11h 00m

$993

New YorkBelfast

JFK New York John F Kennedy Intl - BHD Belfast City

JFKBHD

New York John F Kennedy Intl

Thu 12/17

6:25 pm-10:55 am

1 stop11h 30m

Belfast City

Thu 12/31

11:05 am-6:45 pm

1 stop12h 40m

$1,293

New YorkBelfast

JFK New York John F Kennedy Intl - BHD Belfast City

JFKBHD

New York John F Kennedy Intl

Thu 12/17

6:25 pm-10:55 am

1 stop11h 30m

Belfast City

Thu 12/31

11:05 am-6:45 pm

1 stop12h 40m

$1,294

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Northern Ireland?

The cheapest month to fly to Northern Ireland from United States is in January. Flight prices, which tend to average around $603, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Northern Ireland from United States during March instead. Flights to Northern Ireland in March, while not as cheap as those in January, still average around $670.

Can stopping save me money on United States to Northern Ireland flights?

You could potentially save up to 19% on your flight if you consider stops on a United States to Northern Ireland flight.

Cheap United States to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Northern Ireland

Best Price Found	$207
Fastest flight time	9h 55m
Direct flights	None

The best one-way flight to Northern Ireland from United States in the past 72 hours is $207. The best round-trip flight deal from United States to Northern Ireland found on momondo in the last 72 hours is $638.

The fastest flight from United States to Northern Ireland takes 9h 55m

There are no direct flights from United States to Northern Ireland. There are no popular flight routes from United States to Northern Ireland.

Search flight deals

Frequently asked questions about flying from the United States to Northern Ireland

When did momondo last update prices for flights from United States to Northern Ireland?
Prices for flights from United States to Northern Ireland were last updated today.
How many operators does momondo search for flights from United States to Northern Ireland?
As of September 2026, there are 2 operators available to choose from for flights from United States to Northern Ireland.
How old do you have to be to fly from United States to Northern Ireland?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from United States to Northern Ireland

Compare and see reviews for airlines that fly from United States to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $541	Free Cancellation	Rating 7.1 12,045 reviews	Search American Airlines flights
British Airways	PriceFrom $556	Free Cancellation	Rating 6.7 8,203 reviews	Search British Airways flights
Delta	PriceFrom $973	Free Cancellation	Rating 7.8 8,561 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Northern Ireland?

Finding the right flight to Northern Ireland from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.

Can I find flights from United States to Northern Ireland with flexible booking policies on momondo?

Flights from United States to Northern Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from United States to Northern Ireland?

Once you have performed a search for United States to Northern Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United States to Northern Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of United States to Northern Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.